JavaScript equivalent to printf/String.Format

Current JavaScript From ES6 on you could use template strings: See Kim’s answer below for details. Older answer Try sprintf() for JavaScript. If you really want to do a simple format method on your own, don’t do the replacements successively but do them simultaneously. Because most of the other proposals that are mentioned fail when a replace string … Read more

Strings and character with printf

If you try this: Output is: So ‘name’ is actually a pointer to the array of characters in memory. If you try reading the first four bytes at 0xbff5391b, you will see ‘s’, ‘i’, ‘v’ and ‘a’ To print a character you need to pass the value of the character to printf. The value can … Read more

Scanf/Printf double variable C

For variable argument functions like printf and scanf, the arguments are promoted, for example, any smaller integer types are promoted to int, float is promoted to double. scanf takes parameters of pointers, so the promotion rule takes no effect. It must use %f for float* and %lf for double*. printf will never see a float … Read more

How many spaces for tab character(\t)?

A tab character should advance to the next tab stop. Historically tab stops were every 8th character, although smaller values are in common use today and most editors can be configured. I would expect your output to look like the following: The algorithm is to start a column count at zero, then increment it for … Read more

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